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foreign [Music] [Applause] hello everyone seems like everythings working so welcome to my talk about OCR 2.0 um and hopefully I can provide you a little bit with her under the hood look as well of what has changed with OCR 2.0 compared with its predecessor OCR one this is based on joint work with these awesome folks so shout out to them because without their contribution none of this would be possible um so yeah maybe a natural starting point is to dive into a review of what off-chain reporting Protocol 1.0 OCR one uh was or is um and then from there we can look at the improvements and evolution weve made towards ocr2 so OCR one was specifically designed for powering our data feeds on evm chains that is to say ethereum like blockchains and its been successful at that its been running very reliably and securely for the past one and a half years it secures or the data feeds powered by it secure uh 20 billion dollars of value according to data.channel link weve written 4.2 billion d